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For my AMD Radeon RX 5700XT I tried amdgpu-pro drivers (v19.50) installation on modern (kernel 5.3) Ubuntu 18.04.3 as driver claims it's supported but compilation failed with C++ errors. Tried the same on 5.0 and 5.5.2 kernels with same results (on 5.5.2 kernel it was different error though: <drm/drmP.h>: No such file or directory).

Currently I'm on kernel 5.5.2 with mesa 19.3 installed. clinfo prints a lot of satisfying information seeming it's all cool, but with such tiny little line in-between:

fatal error: cannot open file '/usr/lib/clc/gfx1010-amdgcn-mesa-mesa3d.bc': No such file or directory

which causes kernels compilation to fail (with the same error).

Anyone having any luck getting navi10 GPU OpenCL working on Ubuntu any distro?

Slaus
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2 Answers2

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So, I couldn't manage amdgpu/amdgpu-pro driver to install on Ubuntu 18.04 with all permutations of:

kernels 5.0,5.2,5.3,5.4,5.5

gcc 7,8,9 (every version was giving different errors which I was fixing to just get other errors)

amdgpu and amdgpu-pro versions 19.30,19.50

But I did manage to get OpenCL working ;) What eventually succeeded for me:

  • fresh Ubuntu 18.04.3 installation
  • update kernel to version 5.4 with ukuu (next (mesa) step fails on kernel version 5.5)
  • reboot

  • install mesa 19.3:

    sudo add-apt-repository ppa:kisak/kisak-mesa

    sudo apt-get dist-upgrade

    sudo apt-get update

  • reboot

  • install OpenCL:

    sudo apt install opencl-headers ocl-icd-libopencl1 clinfo

    sudo ln -s /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /usr/lib/libOpenCL.so

P.S. Exploring and learning about amdgpu-pro sources while trying to fix compilation errors I discovered that AMD devs implement forthcoming GPUs directly within mesa open-source drivers and Linux kernel - months before GPUs even released. So, to jusfify AMD devs a bit, that's where the development focus is - not on amdgpu-pro.

Slaus
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    By now you're probably content with your setup and don't want to change anything, but the stable version of [kernel 5.5.6](https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.6) released today and it seems to have addressed /most/ of our issues. Long story short, I removed OpenCL and the amdgpu 19.50 drivers that were downloaded from their site and stuck with the PPA repos. When I did the kernel update it detected the firmware and libraries I was missing (including OpenCL!), and after successful reboot my OpenCL tests worked. – mikkeyboi Feb 24 '20 at 17:54
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Glad you got it working, I saw your inquiry on a few other forums while trying to find a solution. I managed to get a somewhat working solution.

I also have the RX 5700XT, and I'm running Pop!_OS 19.10 on 5.5.5-050505-generic. For my PPA's, I have cappelikan, kisak, and oibaf; I suspect this is reproducible without them as I mainly have [a few of] them for general drivers (other than OpenCL).

I downloaded the amdgpu-pro drivers 19.50, and installed the following (in order):

Setting up amdgpu-core (19.50-967956) ...
Setting up amdgpu-pro-core (19.50-967956) ...
Setting up opencl-amdgpu-pro-comgr (19.50-967956) ...
Setting up opencl-amdgpu-pro-icd (19.50-967956) ...
Setting up libdrm2-amdgpu:amd64 (1:2.4.99-967956) ...
Setting up libdrm-amdgpu-amdgpu1:amd64 (1:2.4.99-967956) ...
Setting up libopencl1-amdgpu-pro:amd64 (19.50-967956) ...
Setting up clinfo-amdgpu-pro (19.50-967956) ...

To test if OpenCL works, I ran darktable-cltest and looked for successful outputs when loading the opencl kernel.

There is a big 'but' in all this: I cannot boot successfully (black screen, flashing lines). I'd have to CTRL+ALT+F2 and run ./amdgpu-pro-install --uninstall from the amdgpu-pro drivers directory, and then repeat the same steps above. I've tested this with the 5.3 and 5.5 kernel so far.

mikkeyboi
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    Oh, it installed!? Black screen is a big 'but' though :). Anyway, I don't understand how you managed to install `19.50` driver on `5.5` core since it compiles **drm** which fails with `couldn't find drp/drmP.h` and it's because [it was removed from linux kernel 5.5](https://github.com/torvalds/linux/commit/574cc4539762561d96b456dbc0544d8898bd4c6e), but **in-kernel** driver [was fixed](https://github.com/torvalds/linux/commit/fdf2f6c56e5e289c7d7e726b676aba25643b39a0) in response to `drmP.h` removal. – Slaus Feb 20 '20 at 07:55
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    Yup, installing only those packages did not give any error. I'm not sure what else I can add, but have you tried using [ROCm](https://github.com/RadeonOpenCompute/ROCm/)? The closest to our setup would be ROCm 3.0, and its setup ships with OpenCL. – mikkeyboi Feb 20 '20 at 09:23
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    Yes, I tried **ROCm**, but also failed - can't remember my set up atm. Anyway, **ROCm** just tries to install the same **amdgpu-pro** drivers, which fails. I also installed [ComputeCpp from Codeplay](https://www.codeplay.com/products/computesuite/computecpp) (which should target **OpenCL** on **AMD**), but it again was failing with `cannot open file '/usr/lib/clc/gfx1010-amdgcn-mesa-mesa3d.bc'` error. Btw, I'm happy with my current **OpenCL** installation through `kernel 5.4` and `mesa 19.3` - everything works fine ;) – Slaus Feb 20 '20 at 15:04
  • ComputeCpp only works with a specific older version of the drivers (see Platform Support Notes https://developer.codeplay.com/products/computecpp/ce/guides/platform-support#intel-3-intel-cpu-opencl-device-sse4-1-requirement) because AMD stopped providing support for SPIR in their drivers. – Rod Burns Feb 24 '20 at 11:51